A Framework for Performance Analysis of dispatching Rules in manufacturing Systems

Je-Hun Lee, Young Kim, Jun Kim, Yun Bae Kim, Hyun-Jung Kim, Byung-Hee Kim, Gu-Hwan Chung

Abstract: Most manufacturing systems in which jobs arrive dynamically and their processing times have variations use dispatching rules to obtain production schedules. In LCD manufacturing, several dispatching rules that reflect the knowledge of the fab operator have been developed and prioritized to select a unique job for processing on a machine. However, engineers rank the dispatching rules based on their experiences without any systematic analysis method. Hence, there is a great need for a tool that can analyze how the order of dispatching rules affect the key performance indicators (KPIs) of schedules. Therefore, we provide a framework for the performance analysis of dispatching rules so that engineers can examine the KPIs for a given order of dispatching rules and find the best order of dispatching rules.